Member Directory The AAS maintains a membership directory to facilitate member interaction and to support the conduct of official Society business. Search directory for: Filter Results By Clear Filters Type of Science Astronomy Educa (1) Solar System/Planetary Sci (1) State (-) MN (1) Facet State City , Greenbelt (1) Accokeek (1) Adelphi (1) Alexandria (3) Amherst (1) Andover (1) Annapolis (6) Ardmore (1) Arnold (1) Athens (1) Austin (1) Baltimore (207) Belmont (1) Bern (1) Bethesda (8) Boulder (7) Bowie (2) Brockport (1) Calverton (1) Cambridge (2) Catonsville (3) Central (1) Chaoyang District (1) Chevy Chase (2) Clemson (1) College Park (48) Collegeville (2) Colora (1) Columbia (5) Crownsville (2) Damascus (2) Derwood (2) Detroit (1) Duluth (1) Edgewater (2) Elkridge (1) Elkton (1) Ellicott City (5) Fairfax (3) Flagstaff (1) Frostburg (1) Gaithersburg (5) Gambrills (2) Germantown (1) Glenn Dale (1) Greenbelt (157) Hampstead (1) Hanover (1) Hastings (1) Honolulu (2) Houston (1) Hyattsville (1) Jessup (1) Kensington (1) La Jolla (1) Lanham (2) Laurel (28) Leiden (1) Los Angeles (1) Madison (1) Mankato (4) Marina (1) Marriottsville (1) Melbourne (1) Middle River (1) Minneapolis (26) Moorhead (1) Mountain View (2) Mount Airy (2) New York (1) Northfield (3) North Potomac (1) Oberlin (1) Osseo (1) Owings (1) Owings Mills (1) Pasadena (1) Philadelphia (1) Pikesville (1) Potomac (3) Red Wing (1) Rochester (1) Rockville (4) Rome (1) Saint Paul (5) Salisbury (1) San Diego (1) San Marcos (1) Santa Barbara (1) Scaggsville (1) Seabrook (1) Severna Park (1) Shirley (1) Shoreview (1) Silver Spring (17) SILVER SPRING (1) Socorro (1) St. Paul (1) Stevenson (1) St Paul (1) Sykesville (2) Takoma Park (1) Tempe (1) Towson (2) Tracys Landing (1) Trenton (1) Tucson (3) Villanova (1) Wallingford (1) Washington (21) Washington Grove (1) Wheaton (2) Winona (2) Winter Park (1) Woodstock (1) (-) Grand Marais (1) Facet City Membership Class Full Emeritus Member (1) Facet Membership Class Division HAD (1) Facet Division Showing 1-1 of 1 results Mark Hollabaugh Full Emeritus Member Affiliation State/Province MN Country United States